Indonesia Independence Day
The Proclamation of Indonesian Independence (Indonesian: Proklamasi Kemerdekaan Indonesia, or simply Proklamasi) was officially made at 10.00 a.m. sharp on Friday, August 17, 1945. The declaration marked the start of the diplomatic and armed-resistance of the Indonesian National Revolution, fighting against the forces of the Netherlands until the latter officially acknowledged Indonesia's independence in 1949. In 2005, the Netherlands declared that they had decided to accept 17 August 1945 as Indonesia's independence date.
Description from wiki